LET’S hope David Blaine has better luck hanging upside down in Central Park than he did trying to score free booze. The magician waltzed into 230 Fifth with pals last week and asked for a table and bottle service. “He said, ‘Are you going to take care of the bottles,’ as in, will they be comped?” a spy told us. Told he had to pay, “He got upset and said, ‘Well, I’ll just go to a [bleep]ing bar that will comp’ and left.” Blaine’s rep said: “David has been in training for at least the last month, and most of the last two weeks he’s been out in LA.”